459
FNUS76 KSTO 290351
FWSSTO

Spot Forecast for BCFSC Upper Ridge Rambling Unit...CAL FIRE
National Weather Service Sacramento CA
851 PM PDT Mon Sep 28 2026

Forecast is based on ignition time of 0900 PDT on September 30.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Primarily clear, dry, and warm weather near the burn site Wednesday through
the end of the week. Highs in the low to mid 80s. Relative humidities will
be quite low, in the mid teens to mid 20s each day, with poor overnight
recoveries in the high 30s to mid 40s each night. Winds will primarily be
light and terrain driven, though some lingering gusts up to 15 mph will
impact the site Wednesday morning. Following that, gusts will generally be
less than 15 mph each day, with strongest gusts expected in the afternoon.
No precipitation or thunderstorms expected during the forecast period.

.WEDNESDAY...

Sky/weather.........Sunny.
Max temperature.....82-86.
Min humidity........15-20 percent.
Wind (20 ft)........
 Slope/valley.......Light terrain driven winds with gusts up to 15 mph
in the morning.
 Ridgetop...........East around 5 mph shifting to the southwest 5
                    to 7 mph late in the morning.
Mixing height.......3500 ft AGL.
Transport winds.....East around 5 mph shifting to the southwest 5
                    to 7 mph late in the morning.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR CLR
CWR.............0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0
Temp............69  75  78  79  81  82  83  83  84
RH..............37  31  27  26  23  21  20  22  25
SL/VL wind dir..E   E   SW  SW  SW  W   W   W   W
SL/VL wind spd..3   3   2   2   2   3   3   3   2
SL/VL wind gust.13  13  7   7   7   8   8   8   6
Ridge wind dir..E   E   SW  SW  SW  SW  SW  SW  W
Ridge wind spd..5   5   5   5   5   7   7   7   6
Mix hgt (kft)...1.1 1.1 2.9 2.9 2.9 3.5 3.5 3.5 1.9
Transp wind dir.E   E   SW  SW  SW  SW  SW  SW  W
Transp wind spd.5   5   5   5   5   7   7   7   6

.WEDNESDAY NIGHT...

Sky/weather.........Clear.
Min temperature.....59-63.
Max humidity........41-46 percent.
Wind (20 ft)........
 Slope/valley.......Light terrain driven winds up to 5 mph with
gusts up to 10 mph.
 Ridgetop...........West around 6 mph shifting to the northeast 5
                    to 8 mph early in the evening.
Mixing height.......400 ft AGL.
Transport winds.....West around 6 mph shifting to the northeast 5
                    to 8 mph early in the evening.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............81  77  72  69  66  65  64  64  64  63  63  63
RH..............28  34  41  44  45  44  43  42  41  41  41  41
SL/VL wind dir..W   W   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
SL/VL wind spd..2   2   3   3   3   3   3   3   3   3   3   5
SL/VL wind gust.6   6   8   8   8   7   7   7   8   8   8   10
Ridge wind dir..W   W   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Ridge wind spd..6   6   5   5   5   5   5   5   7   7   7   8
Mix hgt (kft)...1.9 1.9 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5
Transp wind dir.W   W   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Transp wind spd.6   6   5   5   5   5   5   5   7   7   7   8

.THURSDAY...

Sky/weather.........Sunny.
Max temperature.....83-88.
Min humidity........20-26 percent.
Wind (20 ft)........
 Slope/valley.......Light terrain driven winds up to 5 mph with
gusts up to 13 mph.
 Ridgetop...........Northeast around 8 mph shifting to the
                    southwest around 7 mph late in the morning.
Mixing height.......4200 ft AGL.
Transport winds.....Northeast around 8 mph shifting to the
                    southwest around 7 mph late in the morning.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............62  61  63  67  74  79  82  83  83  84  85  83
RH..............42  44  43  38  32  27  25  25  25  24  22  24
SL/VL wind dir..NE  NE  NE  NE  NE  SW  SW  SW  SW  SW  SW  SW
SL/VL wind spd..5   5   5   5   5   2   2   2   3   3   3   2
SL/VL wind gust.10  10  12  12  12  6   6   6   8   8   8   6
Ridge wind dir..NE  NE  NE  NE  NE  S   S   S   SW  SW  SW  SW
Ridge wind spd..8   8   8   8   8   6   6   6   8   8   8   7
Mix hgt (kft)...0.5 0.5 0.3 0.3 0.3 2.8 2.8 2.8 4.2 4.2 4.2 3.3
Transp wind dir.NE  NE  NE  NE  NE  S   S   S   SW  SW  SW  SW
Transp wind spd.8   8   8   8   8   6   6   6   8   8   8   7

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly clear. Lows in the lower 60s. Highs in the mid 80s. Light
terrain driven winds.
.SATURDAY...
Mostly clear. Lows in the lower 60s. Highs in the mid 80s. Light
terrain driven winds with gusts up to 14 mph.
.SUNDAY...
Mostly clear. Lows in the lower 60s. Highs in the mid 80s. Light
terrain driven winds.

$$
Forecaster...SP
Requested by...Matthew Brady
Type of request...PRESCRIBED
.TAG 2622692.0/STO
.DELDT 09/29/26
.FormatterVersion 2.0.0
.EMAIL Matthew.Brady@fire.ca.gov,rob.bartsch@fire.ca.gov,Jason.finney@fire.ca.gov,Matthew.brady@fire.ca.gov